(b) Use (a) to prove that
F−1 (U) s F.
Briefly explain how this result can be used in practice.

(c) Suppose now that F (x) is continuous. Show that
F (X) s Unif (0, 1)
Hint: for part (c) you can assume that F (x) is strictly increasing (to facilitate
the proof) but this condition is not actually needed.